The most densely populated city in North America is the home of the United Nations and a hub of international finance, art, and entertainment. New York is also a powerful symbol of American culture. The city welcomes immigrants, with more than a third of its population foreign born. And it has successfully dealt with crime--it is the safest large city in the U.S. Though devastated by the terrorist attacks on September 11, 2001, its residents continue their strong recovery.